Edge Computing vs. Cloud Computing: Key Differences

Edge computing & cloud computing are easily two of the significant technological innovations in the past few decades. They have capacitated various industries & domains to reimagine their business. Edge & Cloud computing has fundamentally distinct concepts and characteristics that address different areas.

Here is a detailed comparison table for edge and cloud computing that will help you understand what their core concept is, how they differ, benefits, challenges, and most importantly, use cases – where they work best.

Difference between Edge Computing & Cloud Computing

Factors

Edge Computing

Cloud Computing

Concept

Edge computing is a distributed computational framework where computation and storage happen at or near the data source itself.

Cloud computing is a concept of storing, managing, and processing data over a network of remote computing infrastructure hosted on the Internet instead of on-premise infrastructure.

Architecture

Highly decentralized & distributed computing infrastructure closer to the end devices such as local edge peripherals and IoT devices.

Edge Architecture

Centralized & distributed computing resources hosted in large-scale data centres spread across multiple locations.

Cloud Architecture

Performance

Edge computing features minimal processing and storage capabilities, focused on latency-critical and real-time analysis.

Cloud computing features powerful computing and enormous storage capabilities, focused on non-time-sensitive, in-depth, and long-term analysis.

Latency

In edge computing, application responsiveness, and content delivery are quicker with nil or low latency as computation is happening closer to the edge devices.	In cloud computing, Latency can be moderate to high and related to bandwidth availability, workload density, and the geographical location of remote resources.

Reliability	Edge computing lacks efficient failover management due to its decentralized nature, Making business continuity uncertain. One significant advantage is that the essential functions rely on the Local Area Network so that it can run operations without an internet connection.	Cloud computing offers better reliability due to centralized architecture. Data backup and disaster recoveries are possible and relatively easy since systems can be replicated effortlessly. Internet connectivity is crucial; the entire operation may stand a standstill if it fails.
Scalability	In edge computing, Scalability is cumbersome because of its highly distributed and dynamic usage environment.	Cloud computing allows for a wide range of computation, network, and storage options for scalability.The provisioning is also easy and quick.
Security & Compliance	Edge computing possesses a modest security posture as it can’t withstand sophisticated cyber threats due to its limited processing capabilities. In edge computing, compliances can be met better since most data resides in the local network & storage.	Cloud computing has a better cybersecurity posture as cloud vendors serve advanced firewalls, access policies, and data protection. In cloud computing, Compliances could be subjective since data resides outside of the local network & storage.
Technologies	Mobile Edge Computing (MEC) Fog Computing Cloudlets Cloud of Things Microdata Centers	Virtualization Service-Oriented Architecture (SOA) Grid Computing Utility Computing
Benefits	Enhanced Speed Improved Data Management Bandwidth Relief Better Security Improved Reliability Scalability and Versatility	Flexibility Increased Collaboration Massive Storage Capacity Cost Savings Mobility Disaster Recovery
Challenges	Discovering edge nodes Bandwidth Bottlenecks Limited Capability and Scaling Complexities Interoperability Network bandwidth Data Accumulation	Data Security and Privacy Cloud Migration Improper Access Controls and Management Compliance Risks Governance and control Cost Management
Use-cases	Real-time Analytics Autonomous vehicles Remote monitoring Healthcare Devices IoT & Smart Cities VR/AR Surveillance & Security	IaaS, PaaS & SaaS Big Data Analytics Testing and Development SD-WAN Backup and Recovery Serverless Computing Hosting & Streaming Services